Joined up with www.ohmstudio.com
about two months ago, they are in beta, releasing in January, it cost me (early sign up) $150 for a lifetime membership, and it's the best money I've ever spent on music.
Over the last two weeks alone, two songs I conceived bass lines for are now complete and uploaded to Soundcloud (one instrumental, one vocal, both completely different styles) with the help of musicians from Australia, New Jersey, and Mexico City. Currently I am working on a third project (another bass line start) with two guitarists (one from Japan, one from Canada), a synth guy (same Canadian), and the same australian drummer.
In addition I have added bass lines to other projects I have been invited to, as well as written lyrics and done vocals for other folks. I have worked with folks from France and Italy as well, and chat on the site using Google translate makes communication a snap.
My return on investment is phenomenal, I can play in the leisure of my home, have full control of the mixing and effects of my music, can keep projects private, or make them public and/or clone able. The pool of talented musicians is wonderful, and the ease of manipulating digital music makes many things possible.
If you have NOT and are looking for a viable outlet, check it out, you won't be sorry.